Stenton Caretaker Dawn Reid, creates beautiful cyanotypes using natural materials from Stenton's landscape! Invented in 1842, Cyanotype is a photographic printing process that produces a cyan-blue print, which has historically been used to produce photographs, including late 19th century images of Stenton. These notecards include a set of 5 different cyanotype prints with information about each plant and Stenton's history on the back. Cards are blank on the inside.